Home / 485,441,264.01-670,091,120.95-318,188,303.65

Finding the Fourth Proportional to 485,441,264.01, 670,091,120.95 and 318,188,303.65

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Solution

The fourth proportional to 485,441,264.01, 670,091,120.95 and 318,188,303.65 is: 439,219,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,441,264.01 : 670,091,120.95 = 318,188,303.65 : x
  2. Step 2: Convert to fraction form
    485,441,264.01/670,091,120.95 = 318,188,303.65/x
  3. Step 3: Cross multiply
    485,441,264.01x = 670,091,120.95 × 318,188,303.65
  4. Step 4: Simplify right side
    485,441,264.01x = 213,215,157,066,007,488
  5. Step 5: Solve for x
    x = 213,215,157,066,007,488/485,441,264.01
  6. Step 6: Final answer
    x = 439,219,268.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.